==16719== Invalid write of size 4 ==16719== at 0x4008DE: func() (0508test.cpp:6) ==16719== by 0x4008EE: main (0508test.cpp:9) 4 程序泄露了40个字节的内存 ==16719== LEAK SUMMARY: ==16719== definitely lost: 40 bytes in 1 blocks ==16719== indirectly lost: 0 bytes ...
Invalid write of size 4：表示程序在源代码第6行出现了错误，显然这里存在越界访问的情况，因此报出invalid write错误。40 bytes in 1 blocks are definitely lost in loss record 1 of 1：说明程序存在内存泄露问题，泄露的大小为10个int类型的40字节。LEAK summary也会展示内存泄露的总体情况。若想深...
malloc/free: in use at exit :内存在退出前没有释放 invalid write of size :非法写入内存,一般为数组越界 invalid read of size :非法读内存:一般为数组越界 definitely lost /possibly lost /still reachable in loss record:内存未释放 definitely :确认丢失。程序中存在内存泄露,应尽快修复。 indirectly:间接...
下面提供一个C++例子,该例子有内存泄露和访问不存在地址的两个错误: 错误信息描述如下,表示访问不存在地址,第一行“Invalid write of size 4”表明什么类型错误,写数据到内存中,而该内存是不应该访问的。1066表示进程id号。如果错误的堆栈信息显示不够显示,那么可以加上选项–num-callers,再加上层级数量,比如–num...
读写已经释放的内存：当程序试图访问已经被释放的内存区域（例如使用`free`函数释放后又对该内存进行读写操作），Memcheck会报告错误，如“Invalid read of size Z”或“Invalid write of size Z”，其中`Z`是读写操作涉及的字节数。2. 定位错误位置 Memcheck输出报告中的错误信息通常会包含发生错误的函数名和...
==22137== Invalid write of size 8==22137== at 0x404659: MAIN__ (test.f:11)==22137== by 0x4037D1: main (in /p/home/jusers/friedrich1/jureca/git/spex/tests/valgrind/a.out)==22137== Address 0x1ffe859090 is on thread 1's stack==22137== in frame #0, created ...
这种情况是很常见的, 原因是使用了未初始化的的地址, 这时候应该查看一下程序是否使用了未初始化的指针 1 2. ==3223== Invalid write of size 4 ==3223== at 0x108602: main (a.c:6)8 ==3223== Address 0x0 is not stack’d, malloc’d or (recently) free’d ...
Invalid write of size 4:表示发现一个错误,这里显示源代码第6行有错误,这里很明显是越界了,所以显示invalid write错误 40 bytes in 1 blocks are definitely lost in loss record 1 of 1:内存泄露错误,泄漏的大小是10* sizeof(int)40byte。 LEAK summary也会显示内存泄漏的情况 ...
==28351== Invalid write of size 1 ==28351== at 0x80483CA: main (in /home/yutao/test/a.out) ==28351== Address 0x4190032 is 2 bytes after a block of size 8 alloc'd ==28351== at 0x4022AB8: malloc (vg_replace_malloc.c:207) ...
Description:==21764== Thread 41: ==21764== Invalid write of size 4 ==21764== at 0x4C2A97C: memset (mc_replace_strmem.c:1007) ==21764== by 0xA9F446: init_key_cache (mf_keycache.c:461) ==21764== by 0x63F008: ha_init_key_cache (handler.cc:5048) ==21764== by 0x879DD9...